sheetrat | b734bfdaad9f9f745379d1231bb15715ae227dfb52b637a7d51624a7a8d16646

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04/07/2026, 15:04

260704-sf27cscw8m10

04/07/2026, 14:41

04/07/2026, 14:30

04/07/2026, 14:25

04/07/2026, 14:20

04/07/2026, 14:17

Analysis

user interaction
yes
max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/07/2026, 14:17

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General

Target
0qbuoyx1abygv4ey.exe
Size 373KB
Sample260704-rl1p2sf14s
SHA256 b734bfdaad9f9f745379d1231bb15715ae227dfb52b637a7d51624a7a8d16646
MD5 24d95c6052d03b268154e6d0e3ff510b
SHA1 5280baf2fb3d4675bf1e0be813118434c15f3f8d
SHA512 3e77e50403890a4084ec4e37791efb52897a9dbf31923a112fe9fa46771b888c3d91373f4630c132d439b3050853fba047e5a177a3cb3266b8b1179727abe53b
SSDEEP 6144:ylqJoOg+hMRITlhQbjusw6v6aP0IKfVrMu/xs7Ew30TlbN2wi6j7UXM:o4oOg+xYPcfKex830Bi6jo
TLSH
T15784C6257FA48E00D580197ECABE3609CB16E0F22502A347370AF7A25D459DEDE6D3DB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

execution sheetrat persistence trojan

Malware Config

Extracted

Family

sheetrat

Version

ola0mn4tzk.localto.net:3722

Signatures

Family: Sheetrat, NonEuclid rat
Sheetrat aka NonEuclid RAT is a trojan written in C#.
trojan sheetrat

Detects Sheetrat obfuscated V1.8 and higher 2 IoCs

Sheetrat aka NonEuclid RAT is a trojan written in C#.

resource	yara_rule
behavioral1/memory/2432-0-0x0000000000650000-0x00000000006B4000-memory.dmp	family_sheetrat_v4
behavioral1/files/0x000700000002432c-5.dat	family_sheetrat_v4

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation	0qbuoyx1abygv4ey.exe

Executes dropped EXE 5 IoCs

pid	Process
3344	Defender.exe
3832	Defender.exe
2936	Defender.exe
3372	Defender.exe
1296	Defender.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\System32\Defender.exe	0qbuoyx1abygv4ey.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4304	schtasks.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	0qbuoyx1abygv4ey.exe
Token: SeDebugPrivilege	3344	Defender.exe
Token: SeDebugPrivilege	3832	Defender.exe
Token: SeDebugPrivilege	2936	Defender.exe
Token: SeIncBasePriorityPrivilege	3344	Defender.exe
Token: SeDebugPrivilege	3372	Defender.exe
Token: SeDebugPrivilege	1296	Defender.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 3100	2432	0qbuoyx1abygv4ey.exe	88
PID 2432 wrote to memory of 2004	2432	0qbuoyx1abygv4ey.exe	90
PID 2004 wrote to memory of 4304	2004	cmd.exe	92
PID 2432 wrote to memory of 3344	2432	0qbuoyx1abygv4ey.exe	93

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\0qbuoyx1abygv4ey.exe
"C:\Users\Admin\AppData\Local\Temp\0qbuoyx1abygv4ey.exe"
1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\SYSTEM32\CMD.exe
  "CMD" netsh advfirewall firewall add rule name="I7!e\;fF\!m/\(" dir=in action=allow program="C:\Windows\System32\Defender.exe" enable=yes & exit
  2⤵
  PID:3100
- C:\Windows\SYSTEM32\cmd.exe
  "cmd" /c schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\System32\Defender.exe" /RL HIGHEST & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2004
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc minute /mo 1 /tn "Microsoft\Windows\WAppCrashNvTew" /tr "C:\Windows\System32\Defender.exe" /RL HIGHEST
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:4304
- C:\Windows\System32\Defender.exe
  "C:\Windows\System32\Defender.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:3344

C:\Windows\System32\Defender.exe
C:\Windows\System32\Defender.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3832

C:\Windows\System32\Defender.exe
C:\Windows\System32\Defender.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2936

C:\Windows\System32\Defender.exe
C:\Windows\System32\Defender.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3372

C:\Windows\System32\Defender.exe
C:\Windows\System32\Defender.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1296

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Defender.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Defender.exe.log
Size 642B
SHA256 f9481e31897c3d9071b744e1638942b52c46858c16ccf692f5c6e109a8b092f6
MD5 e19ed69089e56bbfaaba5e5e63d0354f
SHA1 287519bf7c4ec630e4326db00809f627f927ebef
SHA512 c4a8678d28eea4c3a3adfe0324943478efabef839d3bdacb0e4c278e97ee356037c0bfd83b096952b43d81af0b7253eb7d666416e0024ce93a1c516a834fd05b
TLSH
T18EF078313365E2D889663F16282C268803BF4765E690EE0C7594A2AED9365235F212E7
MD5 SHA1 SHA512 TLSH

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Defender.exe

Path C:\Windows\System32\Defender.exe
Size 373KB
SHA256 b734bfdaad9f9f745379d1231bb15715ae227dfb52b637a7d51624a7a8d16646
MD5 24d95c6052d03b268154e6d0e3ff510b
SHA1 5280baf2fb3d4675bf1e0be813118434c15f3f8d
SHA512 3e77e50403890a4084ec4e37791efb52897a9dbf31923a112fe9fa46771b888c3d91373f4630c132d439b3050853fba047e5a177a3cb3266b8b1179727abe53b
SSDEEP 6144:ylqJoOg+hMRITlhQbjusw6v6aP0IKfVrMu/xs7Ew30TlbN2wi6j7UXM:o4oOg+xYPcfKex830Bi6jo
TLSH
T15784C6257FA48E00D580197ECABE3609CB16E0F22502A347370AF7A25D459DEDE6D3DB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2432-0-0x0000000000650000-0x00000000006B4000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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